Infiniti F50. Manual — part 321

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT

NAVIGATION SYSTEM

DI-127

C

D

E

F

G

H

I

J

L

M

A

B

DI

2.

CHECK RGB SYNCHRONIZING SIGNAL

1.

Connect AV control unit and display connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit harness connector M78
terminal 15 (L/R) and 10.

OK or NG

OK

>> Replace display.

NG

>> Replace AV control unit.

No A/C Display is Shown

EKS006RM

Refer to

ATC-105, "No A/C Display is Shown"

in ATC section.

A/C Operation Is Not Possible

EKS006RN

Refer to

ATC-106, "A/C Operation is not Possible."

in ATC section.

No Fuel Information Is Displayed/No Warning Message Is Displayed

EKS006EA

1.

CHECK HARNESS

1.

Disconnect AV control unit and combination meter, BCM connector.

2.

Check continuity between AV control unit harness connector
M77 terminal 34 (LG), 35 (PU) and ground.

3.

Check continuity between AV control unit harness connector
M77 terminal 34 (LG) and combination meter harness connector
M41 terminal 7 (LG).

4.

Check continuity between AV control unit harness connector
M77 terminal 35 (PU) and combination meter harness connector
M41 terminal 6 (PU).

OK or NG

OK

>> GO TO 2.

NG

>>

●

Check connector housings for disconnected or loose terminals.

●

Repair harness or connector.

2.

CHECK COMMUNICATION SIGNAL (AV-ME)

1.

Connect combination meter, BCM and AV control unit connector.

2.

Turn the ignition switch ON.

3.

Check voltage signal between AV control unit harness connector
M77 terminal 34 (LG) and ground with CONSULT-II or oscillo-
scope.

OK or NG

OK

>> GO TO 3.

NG

>> Replace AV control unit.

15 (L/R) - 10

: Refer to

DI-101, "Terminals and

Reference Value for AV Control
Unit"

.

SKIA3602E

Continuity should not exist.

Continuity should exist.

Continuity should exist.

SKIA3603E

34 (LG) - Ground

: Refer to

DI-101, "Terminals and

Reference Value for AV Control
Unit"

.

SKIA3604E

DI-128

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT

NAVIGATION SYSTEM

3.

CHECK COMMUNICATION SIGNAL (ME-AV)

1.

Turn ignition switch to ON and display “VEHICLE ELECTRONIC
SYSTEMS” screen.

2.

Check voltage signal between AV control unit harness connector
M77 terminal 35 (PU) and ground with CONSULT-II or oscillo-
scope.

OK or NG

OK

>> Replace AV control unit.

NG

>> Replace combination meter.

Vehicle Condition Setting Is Not Possible

EKS006EB

1.

CHECK HARNESS

1.

Disconnect AV control unit, combination meter and BCM con-
nector.

2.

Check continuity between AV control unit harness connector
M77 terminal 34 (LG), 35 (PU) and ground.

3.

Check continuity AV control unit harness connector M77 termi-
nal 34 (LG) and BCM harness connector M4 terminal 31 (LG).

4.

Check continuity AV control unit harness connector M77 termi-
nal 35 (PU) and BCM harness connector M4 terminal 30 (PU).

OK or NG

OK

>> GO TO 2.

NG

>>

●

Check connector housings for disconnected or loose terminals.

●

Repair harness or connector.

2.

CHECK COMMUNICATION SIGNAL (AV-ME)

1.

Connect AV control unit, combination meter and BCM connec-
tor.

2.

Turn ignition switch ON.

3.

Check voltage signal between AV control unit harness connector
M77 terminal 34 (LG) and ground with CONSULT-II or oscillo-
scope.

OK or NG

OK

>> GO TO 3.

NG

>> Replace AV control unit.

35 (PU) - Ground

: Refer to

DI-101, "Terminals and

Reference Value for AV Control
Unit"

.

SKIA3605E

Continuity should not exist.

Continuity should exist.

Continuity should exist.

SKIA3606E

34 (LG) - Ground

: Refer to

DI-101, "Terminals and

Reference Value for AV Control
Unit"

.

SKIA3604E

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT

NAVIGATION SYSTEM

DI-129

C

D

E

F

G

H

I

J

L

M

A

B

DI

3.

CHECK COMMUNICATION SIGNAL (ME-AV)

1.

Turn ignition switch to ON and display “VEHICLE ELECTRONIC
SYSTEMS” screen.

2.

Check voltage signal between AV control unit harness connector
M77 terminal 35 (PU) and ground with CONSULT-II or oscillo-
scope.

OK or NG

OK

>> Replace AV control unit.

NG

>> Replace BCM.

Multifunction Switch Does Not Operate

EKS006TW

Inspection procedure

1.

MULTIFUNCTION SWITCH SELF-DIAGNOSIS

Perform multifunction switch self-diagnosis. Refer to

DI-118, "Multifunction Switch Self-Diagnosis Function"

.

Is self-diagnosis result OK?

OK

>> GO TO 2.

NG

>> Replace multifunction switch.

2.

CHECK POWER AND GROUND CIRCUIT

Check power and ground circuit. Refer to

DI-121, "Inspection of Multifunction Switch for Power Supply and

Ground Circuit"

.

OK or NG

OK

>> GO TO 3

NG

>> Repair or replace harness.

3.

COMMUNICATION CIRCUIT SELF-DIAGNOSIS

Perform the self-diagnosis mode in the self-diagnosis function (If the self-diagnosis cannot be activated with
the multifunction switch, check with CONSULT-II). Refer to

DI-109, "Self-Diagnosis Mode"

.

Is self-diagnosis result OK?

OK

>> Replace display

NG

>> With the self-diagnosis results, check the malfunction part.

Multifunction Switch Indicator Does Not illuminate

EKS006TX

1.

MULTIFUNCTION SWITCH SELF-DIAGNOSIS

Perform the multifunction switch self-diagnosis. Refer to

DI-118, "Multifunction Switch Self-Diagnosis Func-

tion"

.

Is the self-diagnosis result OK?

OK

>> Replace switch of the malfunctioning indicator

NG

>> Replace multifunction switch.

35 (PU) - Ground

: Refer to

DI-101, "Terminals and

Reference Value for AV Control
Unit"

.

SKIA3605E

DI-130

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT

NAVIGATION SYSTEM

Removal and Installation of Display

EKS006TO

REMOVAL

1.

Remove the cluster lid C. Refer to

IP-10, "INSTRUMENT

PANEL ASSEMBLY"

2.

Remove the screws (4), and remove the display.

INSTALLATION

Install in the reverse order of removal.

SKIA4109E